Prepared for a joint meeting of the American Society of Mechanical Engineers and the Institution of Mechanical Engineers, the map highlighted information and sites of interest to early twentieth-century tourists, including streetcar and rapid transit lines, major parks and boulevards, cultural and educational institutions, settlement houses, the Union Stock Yard, and key Chicago businesses, like Western Electric Co., Crane Co., and Wolff Manufacturing Co. (misspelled on the map).

Creator: American Society of Mechanical Engineers
Source: Chicago Historical Society (ICHi-34343)